<template>
  <view class="container">
    <!-- 标题 -->
    <view class="page-title">个人信息</view>
    <!-- 表单组件 -->
    <view class="form-wrapper">
      <u-form :model="form" ref="uForm" label-width="140rpx">
        <u-form-item label="头像">
          <button class="btn-normal" open-type="chooseAvatar" @click="onClickAvatar()" @chooseavatar="onChooseAvatar">
            <avatar-image :url="avatarUrl" :width="100" />
          </button>
        </u-form-item>
        <u-form-item label="昵称" prop="nickName">
          <u-input v-model="form.nickName" type="nickname" maxlength="12" placeholder="请输入昵称" @input="onInputNickName" @blur="onInputNickName" />
        </u-form-item>
      </u-form>
    </view>
    <!-- 操作按钮 -->
    <view class="footer">
      <view class="btn-wrapper">
        <view class="btn-item btn-item-main" :class="{ disabled }" @click="handleSubmit()">保存</view>
      </view>
    </view>
  </view>
</template>

<script>
  import store from '@/store'
  import AvatarImage from '@/components/avatar-image'
  import * as UserApi from '@/api/user'
  import * as UploadApi from '@/api/upload'

  // 表单验证规则
  const rules = {
    nickName: [{
      required: true,
      message: '请输入用户昵称',
      trigger: ['blur', 'change']
    }]
  }

  export default {
    components: {
      AvatarImage
    },
    data() {
      return {
        // 按钮禁用
        disabled: false,
        // 头像路径 (用于显示)
        avatarUrl: '',
        // 临时图片 (用于上传)
        tempFile: null,
        // 表单数据
        form: {
          avatarId: '',
          nickName: ''
        },
        // 验证规则
        rules,
      }
    },

    /**
     * 生命周期函数--监听页面加载
     */
    onLoad() {
      // 获取当前用户信息
      this.getUserInfo()
    },

    // 必须要在onReady生命周期，因为onLoad生命周期组件可能尚未创建完毕
    onReady() {
      this.$refs.uForm.setRules(this.rules)
    },

    methods: {

      // 获取当前用户信息
      getUserInfo() {
        const app = this
        UserApi.info()
          .then(result => {
            const userInfo = result.data.userInfo
            app.avatarUrl = userInfo.avatar_url
            app.form.avatarId = userInfo.avatar_id
            app.form.nickName = userInfo.nick_name
          })
      },

      // 点击头像按钮事件
      onClickAvatar() {
        // #ifdef MP-WEIXIN
        return
        // #endif
        this.chooseImage()
      },

      // 选择头像事件 - 仅限微信小程序
      // #ifdef MP-WEIXIN
      onChooseAvatar({ detail }) {
        const app = this
        app.avatarUrl = detail.avatarUrl
        app.tempFile = { path: app.avatarUrl }
      },
      // #endif

      // 选择图片
      chooseImage() {
        const app = this
        // 选择图片
        uni.chooseImage({
          count: 1,
          sizeType: ['original', 'compressed'], // 可以指定是原图还是压缩图，默认二者都有
          sourceType: ['album', 'camera'], // 可以指定来源是相册还是相机，默认二者都有
          success({ tempFiles }) {
            app.tempFile = tempFiles[0]
            app.avatarUrl = app.tempFile.path
          }
        });
      },

      // 上传图片
      uploadFile() {
        const app = this
        return UploadApi.image([app.tempFile])
          .then(fileIds => {
            app.form.avatarId = fileIds[0]
            app.tempFile = null
          })
      },

      // 确认修改
      async handleSubmit() {
        const app = this
        // 判断是否重复提交
        if (app.disabled === true) return
        app.$refs.uForm.validate(async valid => {
          if (valid) {
            // 按钮禁用
            app.disabled = true
            // 先上传头像图片
            if (app.tempFile) {
              await app.uploadFile()
            }
            // 提交保存个人信息
            UserApi.personal({ form: app.form })
              .then(result => {
                app.$toast(result.message)
                setTimeout(() => {
                  app.disabled = false
                  uni.navigateBack()
                }, 1500)
              })
              .catch(err => app.disabled = false)
          }
        })
      },

      // 绑定昵称输入框 (用于微信小程序端快速填写昵称能力)
      onInputNickName(val) {
        if (val) {
          this.form.nickName = val
        }
      }

    }
  }
</script>

<style>
  page {
    background: #f7f8fa;
  }
</style>
<style lang="scss" scoped>
  .container {}

  .page-title {
    width: 94%;
    margin: 0 auto;
    padding-top: 40rpx;
    font-size: 28rpx;
    color: rgba(69, 90, 100, 0.6);
  }

  .form-wrapper {
    margin: 20rpx auto 20rpx auto;
    padding: 0 40rpx;
    width: 94%;
    box-shadow: 0 1rpx 5rpx 0px rgba(0, 0, 0, 0.05);
    border-radius: 16rpx;
    background: #fff;
  }

  /* 底部操作栏 */

  .footer {
    margin-top: 80rpx;

    .btn-wrapper {
      height: 100%;
      // display: flex;
      // align-items: center;
      padding: 0 20rpx;
    }

    .btn-item {
      flex: 1;
      font-size: 28rpx;
      height: 86rpx;
      color: #fff;
      border-radius: 50rpx;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .btn-item-wechat {
      background: #0ba90b;
      margin-bottom: 26rpx;
    }

    .btn-item-main {
      background: linear-gradient(to right, #f9211c, #ff6335);
      color: #fff;

      // 禁用按钮
      &.disabled {
        opacity: 0.6;
      }
    }

  }
</style>
